排序
How to create a custom AsyncSequence 如何创建自定义 AsyncSequence
There are only three differences between creating an AsyncSequence and creating a regular Sequence, none of which are complicated.创建 AsyncSequence 和创建...
1年前How to fix the error “async call in a function that does not support concurrency” 如何修复错误 “async call in a function that does not support concurrency”
This error occurs when you’ve tried to call an async function from a synchronous function, which is not allowed in Swift – asynchronous functions must be able to suspend the...
1年前
Sending data safely across actor boundaries 跨参与者边界安全地发送数据
Swift tries to ensure access to shared data is done safely, partly through types such as actors, and partly through a concept of sendability implemented through the ...
1年前How to call an async function using async let 如何使用 async let 调用 async 函数
Sometimes you want to run several async operations at the same time then wait for their results to come back, and the easiest way to do that is with async let. This lets you start...
1年前What’s the difference between a task and a detached task? 任务和分离任务有什么区别？
If you create a new task using the regular Task initializer, your work starts running immediately and inherits the priority of the caller, any task local values, and its ...
1年前Introduction to testing Swift concurrency Swift 并发测试简介
Swift's full range of concurrency features work great with unit tests using both the legacy XCTest framework and the new Swift Testing framework.Swift 的全套并发功能非常适合使用旧...
1年前How to create and use async properties 如何创建和使用异步属性
Just as Swift’s functions can be asynchronous, computed properties can also be asynchronous: attempting to access them must also use await or similar, and may also need&...
1年前
What is actor hopping and how can it cause problems? 什么是 actor 跳转，它如何导致问题？
When a thread pauses work on one actor to start work on another actor instead, we call it actor hopping, and it will happen any time one actor calls another.当线程暂停对一个 a...
1年前How to control the priority of a task 如何控制任务的优先级
Swift tasks can have a priority attached to them, such as .high or .background, but the priority can also be nil if no specific priority was assigned. This...
1年前How to test AsyncSequence and AsyncStream 如何测试 AsyncSequence 和 AsyncStream
Concurrent Swift code often streams values over time rather than returning them all at once, so it's important to be able to write tests to check an AsyncStream, AsyncSeq...
1年前